| Acronym | Meaning |
| GRID | Global Resource Information Database |
| APEX | APLE Prototype Experiment |
| VMS | Virtual Memory Systems |
| ASTM | American Society For Testing Materials |
| GEF | Global Environmental Facility |
| TID | Traveling Ionospheric Disturbance |
| ALERT | Automated Local Evaluation In Real Time |
| NEXRAD | Next Generation Weather Radar |
| HTO | Tritiated Water |
| AFB | Atmospheric Fluidized Bed |